non rotary so thought id just fling it in here skyline r32 gtr keeps boost spiking to 1.4 bar before settling back down to .9 bar when i turn the boost controller of it will spool nice and smooth to .9 bar. The car is mapped to 1.2 bar wich is the high setting on the boost controller (.9 is the low setting) but when i turn the boost controller on and set it to high or low it spikes to 1.4 then falls to .9